To cite mgm in publications use:

Haslbeck JMB, Waldorp LJ (2016). “mgm: Structure Estimation for Time-Varying Mixed Graphical Models in high-dimensional Data.” arXiv preprint:1510.06871v2. http://arxiv.org/abs/1510.06871v2.

Corresponding BibTeX entry:

  @Article{,
    title = {mgm: Structure Estimation for Time-Varying Mixed Graphical
      Models in high-dimensional Data},
    author = {Jonas M. B. Haslbeck and Lourens J. Waldorp},
    journal = {arXiv preprint:1510.06871v2},
    year = {2016},
    url = {http://arxiv.org/abs/1510.06871v2},
  }